diff --git a/Source/CPack/cmCPackGenerator.cxx b/Source/CPack/cmCPackGenerator.cxx
index c8b075d799465a1f43db9bb28679a6fa78fac55e..f46d145232c18727c37f3b4ec2c439454e16fe7e 100644
--- a/Source/CPack/cmCPackGenerator.cxx
+++ b/Source/CPack/cmCPackGenerator.cxx
@@ -625,7 +625,8 @@ int cmCPackGenerator::InstallProjectViaInstallCMakeProjects(
         cmGlobalGenerator gg(&cm);
         cmsys::auto_ptr<cmMakefile> mf(
           new cmMakefile(&gg, cm.GetCurrentSnapshot()));
-        if (!installSubDirectory.empty() && installSubDirectory != "/") {
+        if (!installSubDirectory.empty() && installSubDirectory != "/" &&
+            installSubDirectory != ".") {
           tempInstallDirectory += installSubDirectory;
         }
         if (componentInstall) {